he mean tensile strength (in pounds) of wire cables for a bridge is 6240 With standard deviation of 145. Find: a) The z score for a wire with a tensile strength of 6480. b) What tensile strength would be positioned at 2.2 standard deviations below the mean?

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The mean tensile strength (in pounds) of wire cables for a bridge is 6240 with a
standard deviation of 145.
Find:
a) The z score for a wire with a tensile strength of 6480.
b) What tensile strength would be positioned at 2.2 standard deviations below
the mean?
Transcribed Image Text:The mean tensile strength (in pounds) of wire cables for a bridge is 6240 with a standard deviation of 145. Find: a) The z score for a wire with a tensile strength of 6480. b) What tensile strength would be positioned at 2.2 standard deviations below the mean?
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